正确答案: B

一个小穗

题目：一粒稻谷由( )发育而来。

解析：B

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举一反三的答案和解析：

[单选题]紫萁(Osmunda japonica)的叶为同型叶。( )

错误

[单选题]藻类植物中最大的门是( )。

绿藻门

[单选题]听到的是京腔京韵的侯宝林的相声，看到的却是卡通人物在说学逗唱；看到的是原汁原味的生旦净末丑的表演，听到的却是流行歌曲的韵律。借助Flash等现代化手段，传统戏曲也逐渐地被“80后”甚至“90后”所喜欢。传统戏曲的这一个“漂亮转身”启示我们（ ）

文化创新不仅需要继承更需融入时代元素

[单选题]During the war there was a serious lack of food. It was not unusual that even the wealthy families had to bread for days.

do without

[单选题]种子萌发时所谓“出芽”就是指种子已露出“胚芽”。( )

错误

[单选题]厚角组织与厚壁组织的差别，在于厚壁组织是( )。

死细胞，壁均匀地次生加厚

[单选题]--The weather has been very hot and dry.--Yes. If it had rained even a drop, things would be much better now! And my vegetables____ .

wouldn't have died